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Mix phase Rietveld Refinement

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zixue
#1
Oct22-12, 11:47 PM
P: 10
Hi guys,

I am using Xpert Highscore Plus to carry out a Rietveld refinement for my XRD pattern.
I am looking at the lattice parameters and weight fractions.
I am fine with the phase identification. However, it tends to show that my secondary phase (MgO) has higher weight fraction than the primary (MgB2) after Rietveld refinement. I suspect the main peaks of these 2 phases are too close to each other which the program cannot differentiate properly as the primary phase should be in much higher weight fractions. How should I refine it then? Please advise.

Thanks guys.
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zixue
#2
Oct23-12, 10:47 PM
P: 10
bump!
zixue
#3
Oct30-12, 09:57 PM
P: 10
help?

zixue
#4
Nov6-12, 02:04 AM
P: 10
Mix phase Rietveld Refinement

bump!
zixue
#5
Nov20-12, 08:54 AM
P: 10
help!


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